Your search for "magnesium" revealed the following:

Sale price £79.70 Regular price £90.00 Sale
Sale price £49.95 Regular price £70.00 Sale
Sale price £45.72 Regular price £50.00 Sale
Sale price £24.29 Regular price £30.00 Sale
On Sale from £66.60 Regular price £90.00 Sale
Sale price £83.36 Regular price £130.00 Sale
Sale price £94.95 Regular price £130.00 Sale
Sale price £108.99 Regular price £150.00 Sale
On Sale from £119.90 Regular price £150.00 Sale
Sale price £33.50 Regular price £40.00 Sale
Sale price £63.63 Regular price £90.00 Sale
Sale price £115.75 Regular price £150.00 Sale